Longmont, current weather: clear, no precipitation is expected for the next 2 hours. Air temperature +27°, feels like +27°. Wind speed 1.5 Meters per second, southerly. Pressure 640 millimeters of mercury. Humidity 28%. Daytime water temperature +15°. Sunrise 06:51, Sunset 18:51. This time yesterday +25°
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Weather forecast in Longmont, United States
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Weather forecast for tomorrow: +14…+30° · clear, no precipitation · light winds at 2–3 m/s with gusts up to 7 m/s
Weather forecast for the week: +30…+32° · clear, no precipitation · light winds at 4 m/s with gusts up to 9 m/s
Weather forecast for today: +11…+34° · clear, no precipitation · light winds at 3 m/s with gusts up to 10 m/s
Weather forecast for the weekend: +32° · clear, no precipitation · light winds at 4 m/s with gusts up to 9 m/s
Wind speed 1.5 Meters per second, southerly, Light. Humidity 28%, Low. Pressure 640 millimeters of mercury, High
Data sources
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Longmont, United States: Hourly forecast.
11 am: +27°, clear, Feels like +26°.
12 pm: +30°, mostly clear, Feels like +29°.
1 pm: +31°, mostly clear, Feels like +30°.
2 pm: +33°, mostly clear, Feels like +31°.
3 pm: +34°, partly cloudy, Feels like +32°.
4 pm: +33°, partly cloudy, Feels like +29°.
5 pm: +31°, overcast, Feels like +27°.
6 pm: +28°, mostly clear, Feels like +25°.
Sunset 26 September 06:51 pm
7 pm: +24°, mostly clear, Feels like +21°.
8 pm: +22°, mostly clear, Feels like +19°.
9 pm: +21°, mostly clear, Feels like +18°.
10 pm: +20°, mostly clear, Feels like +17°.
11 pm: +20°, mostly clear, Feels like +17°.
Friday, 12 am: +18°, partly cloudy, Feels like +15°.
1 am: +17°, mostly clear, Feels like +14°.
2 am: +17°, mostly clear, Feels like +14°.
3 am: +16°, mostly clear, Feels like +13°.
4 am: +16°, mostly clear, Feels like +13°.
5 am: +15°, mostly clear, Feels like +12°.
6 am: +14°, partly cloudy, Feels like +11°.
Sunrise 27 September 06:52 am
7 am: +14°, partly cloudy, Feels like +11°.
8 am: +18°, mostly clear, Feels like +16°.
9 am: +21°, mostly clear, Feels like +19°.
10 am: +23°, clear, Feels like +20°.
11 am: +25°, clear, Feels like +23°.
12 pm: +27°, clear, Feels like +26°.
1 pm: +28°, clear, Feels like +27°.
2 pm: +29°, clear, Feels like +28°.
3 pm: +30°, clear, Feels like +29°.
4 pm: +29°, clear, Feels like +26°.
5 pm: +28°, clear, Feels like +25°.
6 pm: +26°, clear, Feels like +23°.
Sunset 27 September 06:49 pm
7 pm: +23°, clear, Feels like +21°.
8 pm: +20°, clear, Feels like +18°.
9 pm: +18°, clear, Feels like +16°.
10 pm: +17°, clear, Feels like +15°.
11 pm: +16°, clear, Feels like +14°.
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Weather forecast for 10 days in Longmont, United States
Air quality forecast
Good
The air quality is good. Enjoy your usual outdoor activities.
- AQI — 25
- AQI — 21
- AQI — 27
- AQI — 41
- AQI — 41
- AQI — 28
- AQI — 26
- AQI — 18
Weather forecast for Today, 26 September: in the morning air temperature +19°, feels like +18°, clear, wind speed 2.2 meters per second, easterly, humidity 50%, pressure 637 millimeters of mercury; in the afternoon +32°, feels like +30°, partly cloudy, wind speed 3.9 meters per second, south-easterly, humidity 18%, pressure 639 millimeters of mercury; in the evening +24°, feels like +21°, mostly clear, wind speed 3.2 meters per second, westerly, humidity 33%, pressure 638 millimeters of mercury; in the night +17°, feels like +14°, mostly clear, wind speed 3 meters per second, westerly, humidity 46%, pressure 639 millimeters of mercury; uv index: 7, high; magnetic field: unsettled; daytime water temperature +15°; sunrise 06:51; sunset 18:51; daylight hours: 12 hr 0 min
Weather forecast for Tomorrow, 27 September: in the morning air temperature +19°, feels like +17°, mostly clear, wind speed 2.5 meters per second, south-westerly, humidity 38%, pressure 641 millimeters of mercury; in the afternoon +29°, feels like +28°, clear, wind speed 3 meters per second, easterly, humidity 24%, pressure 645 millimeters of mercury; in the evening +22°, feels like +20°, clear, wind speed 2.7 meters per second, easterly, humidity 39%, pressure 642 millimeters of mercury; in the night +14°, feels like +11°, clear, wind speed 2.4 meters per second, westerly, humidity 60%, pressure 640 millimeters of mercury; uv index: 7, high; magnetic field: quiet; daytime water temperature +16°; sunrise 06:52; sunset 18:49; daylight hours: 11 hr 57 min
Weather forecast for Saturday, 28 September: in the morning air temperature +18°, feels like +17°, clear, wind speed 2 meters per second, south-easterly, humidity 52%, pressure 641 millimeters of mercury; in the afternoon +31°, feels like +30°, clear, wind speed 3.7 meters per second, south-easterly, humidity 24%, pressure 646 millimeters of mercury; in the evening +23°, feels like +20°, clear, wind speed 3 meters per second, south-easterly, humidity 29%, pressure 642 millimeters of mercury; in the night +14°, feels like +11°, clear, wind speed 2.9 meters per second, north-westerly, humidity 55%, pressure 640 millimeters of mercury; uv index: 7, high; magnetic field: quiet; daytime water temperature +16°; sunrise 06:53; sunset 18:48; daylight hours: 11 hr 55 min
Weather forecast for Sunday, 29 September: in the morning air temperature +16°, feels like +14°, clear, wind speed 2 meters per second, westerly, humidity 52%, pressure 641 millimeters of mercury; in the afternoon +31°, feels like +29°, mostly clear, wind speed 4 meters per second, south-easterly, humidity 23%, pressure 643 millimeters of mercury; in the evening +25°, feels like +21°, mostly clear, wind speed 3.7 meters per second, westerly, humidity 29%, pressure 638 millimeters of mercury; in the night +16°, feels like +13°, clear, wind speed 3 meters per second, westerly, humidity 46%, pressure 638 millimeters of mercury; uv index: 6, high; daytime water temperature +15°; sunrise 06:54; sunset 18:46; daylight hours: 11 hr 52 min
Weather forecast for Monday, 30 September: in the morning air temperature +18°, feels like +14°, mostly clear, wind speed 4.6 meters per second, north-easterly, humidity 42%, pressure 641 millimeters of mercury; in the afternoon +27°, feels like +23°, mostly clear, wind speed 4.8 meters per second, easterly, humidity 27%, pressure 643 millimeters of mercury; in the evening +19°, feels like +16°, mostly clear, wind speed 3.9 meters per second, north-westerly, humidity 46%, pressure 640 millimeters of mercury; in the night +11°, feels like +7°, clear, wind speed 2.5 meters per second, north-easterly, humidity 47%, pressure 643 millimeters of mercury; uv index: 0, low; daytime water temperature +16°; sunrise 06:55; sunset 18:44; daylight hours: 11 hr 49 min
Weather forecast for Tuesday, 1 October: in the morning air temperature +10°, feels like +6°, mostly clear, wind speed 2.4 meters per second, easterly, humidity 53%, pressure 643 millimeters of mercury; in the afternoon +22°, feels like +18°, mostly clear, wind speed 3 meters per second, southerly, humidity 27%, pressure 643 millimeters of mercury; in the evening +18°, feels like +15°, clear, wind speed 2.5 meters per second, westerly, humidity 40%, pressure 640 millimeters of mercury; in the night +9°, feels like +5°, clear, wind speed 3 meters per second, westerly, humidity 47%, pressure 637 millimeters of mercury; daytime water temperature +15°; sunrise 06:56; sunset 18:43; daylight hours: 11 hr 47 min
Weather forecast for Wednesday, 2 October: in the morning air temperature +13°, feels like +9°, mostly clear, wind speed 3 meters per second, westerly, humidity 41%, pressure 637 millimeters of mercury; in the afternoon +30°, feels like +25°, partly cloudy, wind speed 5.1 meters per second, south-westerly, humidity 16%, pressure 639 millimeters of mercury; in the evening +23°, feels like +18°, partly cloudy, wind speed 4 meters per second, north-westerly, humidity 20%, pressure 636 millimeters of mercury; in the night +14°, feels like +9°, overcast, wind speed 4 meters per second, north-westerly, humidity 35%, pressure 636 millimeters of mercury; daytime water temperature +13°; sunrise 06:57; sunset 18:41; daylight hours: 11 hr 44 min
Weather forecast for Thursday, 3 October: in the morning air temperature +12°, feels like +7°, overcast, wind speed 4.3 meters per second, north-westerly, humidity 50%, pressure 636 millimeters of mercury; in the afternoon +20°, feels like +15°, partly cloudy, wind speed 4 meters per second, easterly, humidity 29%, pressure 640 millimeters of mercury; in the evening +16°, feels like +12°, mostly clear, wind speed 4 meters per second, easterly, humidity 49%, pressure 638 millimeters of mercury; in the night +9°, feels like +5°, mostly clear, wind speed 3.5 meters per second, north-westerly, humidity 68%, pressure 639 millimeters of mercury; daytime water temperature +14°; sunrise 06:58; sunset 18:40; daylight hours: 11 hr 42 min
Weather forecast for Friday, 4 October: in the morning air temperature +9°, feels like +5°, mostly clear, wind speed 3.2 meters per second, north-westerly, humidity 70%, pressure 638 millimeters of mercury; in the afternoon +23°, feels like +20°, mostly clear, wind speed 3.5 meters per second, southerly, humidity 35%, pressure 638 millimeters of mercury; in the evening +19°, feels like +16°, mostly clear, wind speed 3.5 meters per second, north-westerly, humidity 45%, pressure 636 millimeters of mercury; in the night +10°, feels like +6°, clear, wind speed 3.2 meters per second, westerly, humidity 57%, pressure 636 millimeters of mercury; daytime water temperature +14°; sunrise 06:59; sunset 18:38; daylight hours: 11 hr 39 min
Weather forecast for Saturday, 5 October: in the morning air temperature +12°, feels like +7°, mostly clear, wind speed 4.3 meters per second, south-westerly, humidity 49%, pressure 636 millimeters of mercury; in the afternoon +28°, feels like +23°, partly cloudy, wind speed 4.8 meters per second, south-westerly, humidity 19%, pressure 638 millimeters of mercury; in the evening +18°, feels like +14°, clear, wind speed 3.2 meters per second, westerly, humidity 40%, pressure 637 millimeters of mercury; in the night +9°, feels like +5°, clear, wind speed 2.9 meters per second, south-westerly, humidity 45%, pressure 639 millimeters of mercury; daytime water temperature +13°; sunrise 07:00; sunset 18:36; daylight hours: 11 hr 36 min
Weather forecast Longmont, United States for the next month
Get the weather forecast for the next 30 days, including september and october. There's a separate page where you can view the daytime and nighttime air temperature, precipitation, the number of sunny days, air pressure, and humidity.
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Weather in Longmont — FAQ
What is the weather today in Longmont?
The weather in Longmont today: mostly clear, with an air temperature of +25°.
What will the weather in Longmont be like tomorrow?
The weather in Longmont tomorrow: clear, with an air temperature of +23°.
What is the usual weather in Longmont in September?
In September, the weather in Longmont is usually partly cloudy, with an average air temperature of +22°.
What is the air pollution level in Longmont right now?
The air pollution level in Longmont is currently low, measuring 25.
What is the coldest month in Longmont?
The coldest month in Longmont is December, with an average air temperature of +2°.
What is the hottest month in Longmont?
The hottest month in Longmont is July, with an average air temperature of +27°.
Discover Longmont's weather update: +27° now, reaching a high of +34° and a low of +11°. Prepare for the day ahead with our reliable forecast, ensuring you're ready for any temperature changes. Whether you're indoors or outdoors, stay in the know about Longmont's weather conditions.
Weather forecast for tomorrow: +14…+30° · clear, no precipitation · light winds at 2–3 m/s with gusts up to 7 m/s. Weather forecast for the week: +30…+32° · clear, no precipitation · light winds at 4 m/s with gusts up to 9 m/s. Weather forecast for today: +11…+34° · clear, no precipitation · light winds at 3 m/s with gusts up to 10 m/s. Weather forecast for the weekend: +32° · clear, no precipitation · light winds at 4 m/s with gusts up to 9 m/s
Weather forecast for Today, 26 September: in the morning air temperature +19°, feels like +18°, clear, wind speed 2.2 meters per second, easterly, humidity 50%, pressure 637 millimeters of mercury; in the afternoon +32°, feels like +30°, partly cloudy, wind speed 3.9 meters per second, south-easterly, humidity 18%, pressure 639 millimeters of mercury; in the evening +24°, feels like +21°, mostly clear, wind speed 3.2 meters per second, westerly, humidity 33%, pressure 638 millimeters of mercury; in the night +17°, feels like +14°, mostly clear, wind speed 3 meters per second, westerly, humidity 46%, pressure 639 millimeters of mercury; uv index: 7, high; magnetic field: unsettled; daytime water temperature +15°; sunrise 06:51; sunset 18:51; daylight hours: 12 hr 0 min
Weather forecast for Tomorrow, 27 September: in the morning air temperature +19°, feels like +17°, mostly clear, wind speed 2.5 meters per second, south-westerly, humidity 38%, pressure 641 millimeters of mercury; in the afternoon +29°, feels like +28°, clear, wind speed 3 meters per second, easterly, humidity 24%, pressure 645 millimeters of mercury; in the evening +22°, feels like +20°, clear, wind speed 2.7 meters per second, easterly, humidity 39%, pressure 642 millimeters of mercury; in the night +14°, feels like +11°, clear, wind speed 2.4 meters per second, westerly, humidity 60%, pressure 640 millimeters of mercury; uv index: 7, high; magnetic field: quiet; daytime water temperature +16°; sunrise 06:52; sunset 18:49; daylight hours: 11 hr 57 min